Have fun discovering the hidden side of everything with host Stephen J. Dubner. Each week, hear surprising conversations that explore the riddles of everyday life and the weird wrinkles of human nature—from cheating and crime to parenting and sports.
Sewers offer a portal to knowledge about a city’s hidden side. (Photo: David Goehring/flickr)
You can tell a lot about a city by looking at urine and stool in sewage: what foods we’re eating, what infections we’re harboring, and a lot more. A team at MIT designed a system to understand the health and well-being of a community through sewage sampling at the neighborhood scale, using Mario and Luigi — two small, sewer-scavenging robots deployed below manhole covers to slurp up good samples. A few findings: most people poop at 8 a.m.; pomegranate is very popular in Cambridge, MA,; and the most abundant plant DNA in sewage might not be what you expect…
Join Tell Me Something I Don’t Know in one of America’s oldest urban centers for a show about cities, including ruins, sewage and ghost towns. Our panelists are: